Lockyer, Norman, Sir, 1836-1920, author. Spectroscopic Observations of the Sun / by J. Norman Lockyer and G. M. Seabroke.

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Lockyer, Norman, Sir, 1836-1920, author.

Spectroscopic Observations of the Sun / by J. Norman Lockyer and G. M. Seabroke.

Spectrum, solar.

Sun.

Seabroke, G. M. (George Mitchell), 1848-1918.